I have designed a 5V ,350mA fixed power supply with a 12 Vrms step down transformer. the voltage across filtering capicitor should be almost peak value i.e 15V or 16V . but I am getting 12 volts acrossthe capacitor why is it so.

I have designed a 5V ,350mA fixed power supply with a 12 Vrms step down transformer. the voltage across filtering capicitor should be almost peak value i.e 15V or 16V . but I am getting 12 volts acrossthe capacitor why is it so.

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The capacitor gets charged by the peaks only so the charge current is quite high. This makes the drop across the 1 ohm and the diodes higher than you think.

SIR THIS IS OUR LAB PROJECT USING ZENER MY QUESTION IS WHY VOLTAGE DROPS ACROSS CAPACITOR THEORY BASED ANSWER NEEDED

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